High Power Resistor
Type SBC (Square Ceramic) Series
Type SBC (Square
Ceramic) Series
Characteristics -
Electrical
Resistance Values:
Resistance Tolerance:
Maximum Continuous Voltage:
Load Life:
Power Rating:
Series E24 5% E12 10% (see tables for value
limits per style)
±5% ±10%
√P x R
ΔR <±3% 1000 hours at 70°C
See Surface Temperature Curve (below)
Characteristics -
Environmental and Mechanical
This range of Power Wirewound
Resistors are wound on continuous
glass fibre elements or have a ceramic
core depending on resistance value.
The element is housed in a ceramic
case and sealed with an inorganic
silica filler. Their construction gives a
resistor with high insulation resistance
and low surface temperature, capable
of withstanding high overload currents.
These resistors are ideally suited to a
variety of applications within industrial
and commercial environments, where
performance and reliability are of prime
importance. Applications include fan
force ovens, cooker hoods, power sup-
plies and triac based speed controls.
Custom Design Variants in value and
style are welcomed.
250
Surface Temperature
200
% of Power
150
100
50
0
0
2
4
6
8 10 12
Power in Watts
14
16
18
NB - SBC Series will
run 15°C hotter than
described here
Temperature Coefficient of Resistance:
Resistance to Solder Heat:
Voltage Coefficient of Resistance:
Operating Temperature Range:
Load Stability:
Long Term Damp Heat:
Shelf Life:
Insulation Resistance:
Dielectric Strength:
Lead Material:
Marking:
200ppm/°C (400ppm/°C below 18R)
ΔR < 0.2% (350°C for 2.5 seconds)
Negligible
-55°C to +350°C
ΔR < 5% (full load at 70°C for 1000 hours)
ΔR < 0.2% (21 days at 40°C for 93% humidity)
ΔR < 1.0% (per 12 months)
> 10000M
2000V RMS
Steel - Solder coat
Legend mark, Manufacturer name, type, ohmic value
and tolerance.
Surface Temperature
Rise Curve
SCBH2
SBCH4/5
SBCH6/7
SBCH15
SBCH11
SBCH8
Derating Curve
125
100
80
60
40
20
0
25
75
125
175
225
275
Ambient Temperature
325
375
Key Features
I
I
I
I
I
I
I
Up to 17 Watts
Fusible Styles
Vertical or Axial
Non Flammable
Special Solvent
Resistance
Customer Specials
Invited
Widely Available from
Distribution
Type SBC - SBCH (Axial Power Resistor)
We offer three ceramic profiles for the main wattage sizes.
These are for additional heat dissipation and vertical mounting of resistors.
The suffix for each style is as follows:-
SBC Standard
SBCH 4/5/6/7
SBCH 8/11/15
Type SBCHE (For Vertical Mounting)
We offer SBCHE Styles with one lengthened lead for vertical mounting. See additional hardware on last page.
One Lead Length 20mm longer than case length. Supplied with one longer lead wrapped back in flute in ceramic.
Literature No. 1773278
Issued: 06-09
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
tycoelectronics.com
passives.tycoelectronics.com
High Power Resistor
Type SBC (Square Ceramic) Series
Type SBC - (No Flutes in Ceramic)
Power
Max
4W
5W
7W
9W
Ohmic Values Dimensions Weight
Min Max
A
B
L Grams
R20 6K8
6.4 6.4 20
2.3
R30
R47
1R0
1R0
1R0
10K
22K
8K2
22K
22K
6.4 6.4
6.4 6.4
9
9
9
9
9
9
25
38
38
50
75
2.9
4.2
7.4
10.8
15.3
Model
SBC-2
SBC-4
SBC-6
SBC-8
SBC-11
11 W
SBC-15
17 W
Type SBCH - (Flutes in Ceramic)
Model
Power
Max
Ohmic Values Dimensions Weight
Min Max
A
B
L Grams
R20 6K8
7
8 20
2.2
R30
R47
R33
1R0
1R0
1R0
10K
22K
10K
8K2
22K
22K
7
7
9
9
9
9
8
8
10
10
10
10
25
38
25
38
50
75
3.5
5.0
6.0
8.0
10.0
15.0
SBCH-4
4 W
SBCH-5
5 W
SBCH-6
7 W
SBCH-7
7 W
SBCH-8
9 W
SBCH-11
11 W
SBCH-15
17 W
SBCH - 4, 5, 6 SBCH - 7, 8, 11, 15
L = Length of Ceramic Section
Type SBCLF - (Externally Fused Style)
Model
SBCLF-4
SBCLF-5
SBCLF-7
SBCLF-10
Power
Max
4W
5.5 W
7W
10 W
Ohmic Values Dimensions
Min Max A
B
L
2R2 2K2 10
9
25
2R2
3R3
4R7
5K6
8K2
12K
10
10
10
9
9
9
38
50
75
Solder for fuse is SnPb 60:40
Type SBCV - (Vertical Mount Style)
Power
Max
7W
9W
Ohmic Values Dimensions
Min Max
A
B
L
R47 22K
9 10 25
1R0
1R0
1R0
8K2
22K
22K
9
9
9
10
10
10
38
50
75
Model
SBCV-6
SBCV-8
SBCV-11
11 W
SBCV-15
17 W
Lead drawn through hole in ceramic
Literature No. 1773278
Issued: 06-09
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
tycoelectronics.com
passives.tycoelectronics.com